Bresh also worked as Kuoni’s head of aviation for six years.
He will initially oversee Malaysia Airlines’ strategic partnerships with UK tour operators.
Bresh has more than 20 years’ industry experience, and as well as Travel Up Group and Kuoni, has held senior aviation roles Tui and Virgin Holidays.
Malaysia Airlines’ chief commercial officer, Paul Simmons, said: “We are delighted to be enhancing our UK sales team with the appointment of Steven.
“Having Steven onboard underlines the airline’s commitment to strengthening our services from the UK to Malaysia and beyond.”
Bresh said: “I am very proud to be joining Malaysia Airlines, a company that I have worked closely with in the past.
“I look forward to working with the whole of the UK sales team to further develop our key strategic trade partnerships.
“I am also thrilled to have the opportunity to introduce more UK travellers to Malaysia as a wonderful holiday destination.”
He will be based in the Malaysia Airlines UK headquarters in London.